Aysenur Tuncuk

Aysenur Tuncuk
T.C. Süleyman Demirel Üniversitesi | SDU · Department of Mining Engineering

PhD

About

37
Publications
21,904
Reads
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1,479
Citations
Additional affiliations
December 2006 - present
T.C. Süleyman Demirel Üniversitesi
January 2006 - December 2015
T.C. Süleyman Demirel Üniversitesi
Position
  • T.C. Süleyman Demirel Üniversitesi
January 2006 - December 2015
T.C. Süleyman Demirel Üniversitesi
Position
  • Researcher, MMR&R Research Group and Chemical & Biological Recovery Laboratory

Publications

Publications (37)
Article
a b s t r a c t Waste of electric–electronic equipment (WEEE) with an annual growth rate of about 3–5% is the fastest growing waste stream in municipal wastes. Notwithstanding their environmental pollution potential, waste of electrical and electronic equipment (WEEE) with their high content of base and precious metals, in particular, are regarded...
Article
The purification of quartz using chemical processes is extremely important for many industries, including the glass, electronic, detergent, ceramics, paint, refractory, and metallurgy industries, as well as for advanced technology products. The purpose of this work was to investigate the removal of iron as an impurity from quartz ores using a chemi...
Article
Research on biohydrometallurgy of secondary metal resources is primarily focussed on the leaching of valuable metals. For secondary metal resources biological processing can be an economically more effective and environmentally friendlier alternative to traditional hydrometallurgical and pyrometallurgical processes. Therefore, Bioydrometallurgy is...
Article
In this study, the recovery of gallium (Ga) and aluminum (Al) from the by-product of Bayer process, the electrofilter dust of a calcination plant, was studied. Factorial leaching tests were also designed based on the results of the preliminary tests. Effects of factors and their interactions on the extraction of Ga and Al were demonstrated using An...
Article
Printed circuit board (PCB) is the essential part of electronic devices and has an important source of base and precious metals with high economic potential. In this study, selective leaching of gold from PCB was performed in an iodine-hydrogen peroxide (I2-H2O2) solution system. The effects of different parameters such as iodine concentrations, H2...
Article
Bioleaching of copper from electronic waste (e-waste) in the form of high grade waste printed circuit boards (WPCBs) collected from obsoletemobile phones is assessed using a consortium of iron (Fe2+) & sulphur (Sº) oxidizing bacteria in a semi-pilot reactor system. Results from the study indicated that the microorganisms were able to grow in the pr...
Article
Abstract Waste electrical and electronic equipments (WEEE or e-waste) are an important source for rare earth elements (REEs). Among various type of WEEE, NdFeB magnets are known for their high content of neodymium (Nd) and dysprosium (Dy). Recovery of REEs from NdFeB magnets is of prime interest for the industry to meet the ever-growing demand for...
Article
BACKGROUND: The waste printed circuit boards (WPCBs), today, offer a wide array of metals and are of great importance because their metal concentration is much more than that in the ores. Largely, studies have been devoted to Cu bioleaching from WPCBs because it has the highest ratio among all metallic elements ( ̴ 10-30%). In the present study, an...
Article
Full-text available
Removal of impurities (iron in particular) from quartz using aqueous chemical processes is important for its potential use in many industries including detergent, ceramics, paint, refractory, metallurgy and, in particular, glass and electronic industries to fulfill the desired requirements by these industries for high quality quartz as raw material...
Article
Regulations force to Waste Electrical and Electronic Equipment (WEEE) management by recycling the materials by safe and suitable methods, due to generating massive amounts of WEEE. This research aims towards extract metals from waste random-access memory (RAM) devices in different solutions. In addition, the effect of different parameters such as r...
Article
Turkey is a country with vast lignite reserves, which can serve as a potential source of energy to meet the rising energy demands. However, the sulphur present in coal delimits its application in several sectors. Recently, various techniques have emerged for sulphur removal from coal. In the present study, the efficacy of Rhodococcus erythropolis D...
Article
Full-text available
Iron, the predominant impurity in quartz ores, can be substantially removed via aqueous chemical processes using organic and inorganic acids. Quartz was highly purified by leaching with sulfuric acid (H2SO4) in the presence of reducing agents (oxalic acid, citric acid, and glucose). The effects of the parameters in the leaching tests were evaluated...
Article
Catalysts are used extensively in industry to purify and upgrade various feeds and to improve process efficiency. These catalysts lose their activity with time. Spent catalysts from a sulfuric acid plant (main elemental composition: 5.71% V2O5, 1.89% Al2O3, 1.17% Fe2O3 and 61.04% SiO2; and the rest constituting several other oxides in traces/minute...
Article
Waste generated by the electrical and electronic devices is huge concern worldwide. With decreasing life cycle of most electronic devices and unavailability of the suitable recycling technologies it is expected to have huge electronic and electrical wastes to be generated in the coming years. The environmental threats caused by the disposal and inc...
Article
With the increase in environmental awareness, the disposal of any form of hazardous waste has become a great concern for the industrial sector. Spent catalysts contribute to a significant amount of the solid waste generated by the petrochemical and petroleum refining industry. Hydro-cracking and hydrodesulfurization (HDS) catalysts are extensively...
Article
Printed circuit board (PCB) is the essential part of electronic devices and has an important source of base and precious metals with high economic potential. In this study, selective leaching of gold from PCB was performed in an iodine-hydrogen peroxide (I 2-H 2 O 2) solution system. The effects of different parameters such as iodine concentrations...
Article
Leach solutions and wastes of Bayer process are important resources for metals such as aluminum and vanadium. Despite the fact that vanadium cake is precipitated and removed in the Seydisehir Eti Aluminum Facility (Turkey), it cannot be used due to low metal content and impurities it contains. Within the scope of this study, research and developmen...
Article
Bauxite ores contain strategically important metals such as gallium as well as aluminum. Leach solutions and wastes of Bayer process are important sources for these metals. However, earlier studies are concentrated mostly on the recovery of metals from leach solutions not from solid wastes. In this work, experimental studies were conducted to devel...
Article
Full-text available
Waste of electric–electronic equipment (WEEE) with an annual growth rate of about 3–5% is the fastest growing waste stream in municipal wastes. Notwithstanding their environmental pollution potential, waste of electrical and electronic equipment (WEEE) with their high content of base and precious metals, in particular, are regarded as a potential s...
Article
Full-text available
Purification of quartz with chemical processes is extremely important for many industries including optical quality glass, electronic and advanced technological products. Iron as the most significant impurity present in quartz ores can be substantially removed by aqueous chemical processes using organic and inorganic acids. In this study to investi...
Article
In the present study, to investigate the effects of acidic leaching on the iron removal from kaolin clay supplied by Cam-Ser Madencilik A.S., the 24 full factorial design of experiments and analysis of variance (ANOVA) were performed. The aim of the initial phase of research was to determine the effects of the main and interaction factors which can...
Article
Full-text available
Research on biohydrometallurgy of secondary metal resources is primarily focussed on the leaching of valuable metals. For secondary metal resources biological processing can be an economically more effective and environmentally friendlier alternative to traditional hydrometallurgical and pyrometallurgical processes. Therefore, Bioydrometallurgy is...
Article
To reduce the iron content of kaolin to the desired levels, a variety of industrial physical and chemical processes are employed in practice. Though the physical methods (classical magnetic separation, new and more expensive super conductive magnetic separation in particular) are extensively used, generally low efficiency of these methods has led t...
Article
The removal of iron, titanium and aluminium from colourless and green waste glasses has been studied under various experimental conditions in order to optimize the process parameters and to decrease the metal content in the waste glass by acidic leaching. Statistical design of experiments and ANOVA (analysis of variance) were performed in order to...
Article
Full-text available
Purification of quartz (iron in particular) with chemical prosesses is extremely important for many industries including glass, electronic, detergent, ceramics, paint, refractory and metallurgy. The iron content of quartz is required to be in the range of 0.01-0.1% for its industrial use. Turkish quartz reserves have not been exploited effectively...
Article
Full-text available
ZET Kaolenlerin safsızlaştırılması, içeriğindeki demirin kimyasal ve biyolojik yöntemlerle uzaklaştırılıp öncelikli olarak kâğıt, seramik, boya, refrakter, plastik sanayilerinde kullanılabilecek hale getirilmesi açısından önemlidir. Kaolenler seramik ve kâğıt sanayinin en önemli hammaddesidir. Kaolen demir içeriğinin endüstriyel proseslerde kullanı...

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Projects

Projects (5)
Archived project
Central processing unit (CPU) is the essential part of computers and has an important source of base and precious metals with high economic potential. The project presents the process of leaching waste CPUs to recover copper, gold and silver by using alternative lixiviants.
Archived project
Utilization of Natural Resources
Project
TUBITAK Starting R&D Project Electronic and electrical products turns out to be a waste product there exists a potential risk of environmental problems as they contain several metal values as well as toxic chemicals. Therefore a lot of recycling technologies have been developed using cyanide or non-cyanide leaching methods to recovery economically precious and valuable metals.